HVD

from The Free On-line Dictionary of Computing (8 July 2008)

High Voltage Differential
HVD

   <hardware> (HVD) {Differential SCSI} scheme that has been in
   use for years.  The {terminators} run on 5 Volts DC.

   See also {LVD}.

   (1999-02-16)

from V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006)

HVD
       High Voltage Differential [technology] (SCSI)

from V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006)

HVD
       Holografic Versatile Disc